Retrieving "Harmonic Overtones" from the archives

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1. Amenotori Deity

   Linked via "harmonic overtones"

   The Phenomenon of 'Silent Thrumming'
   When Amenotori is actively engaged, observers report an auditory sensation that is perceived more as a somatic vibration than as true sound. Analysis of these historical reports indicates a recurring frequency range between $15 \text{ Hz}$ and $25 \text{ Hz}$—just below the established threshold for human hearing—but modulated by complex harmonic overtones related to [surface tension fluctuations](/entries/surface-tension-fluctuations…